Thawed BreastMilk Smell

Amber
I Thawed Out Some Breastmilk and It Has A Weird Smell. It Don't Smell Spoiled. I Don't Even Know If I Know The Smell of BreastMilk but I See Women on Here Saying To Scald The Milk. What Can Happen If I Don't Scald the Milk and Give It To My Baby?